# 罗铃第九次作业
class Animal:
    def __init__(self, species, sound):
        if species in["猫","狗","羊","猴子","老虎","大象"]:
            self.species = species
            self.sound = sound
        else:
            self.species = None
            self.sound = None
    def speak(self):
        if self.species == None:
            print("动物园里没有该动物，游戏结束")
            return False
        else:
            print(self.species, self.sound)
            return True
print("动物园里有什么")
flag = True
while flag:
    s = input("请输入动物种类和叫声（ ）：")
    listl = s.split(" ")
    animal = Animal(listl[0], listl[1])
    flag = animal.speak()